2008 Chevy Equinox
3.4L V6
AWD
2100 Miles
Current Oil = Castrol GTX 5W-30
I keep a fuel log/Excel spreadheet on all my vehicle fuel purchases so I know accurately what I am getting for MPG.
Currently my average fuel economy since buying has come out to just over 20 MPG( 20.1.... ). However, as the engine breaks in a little with mileage, and the warmer weather is arriving, the average fill up MPG is going up. I am now seeing 20-22 MPG on an average tank instead of the 18-20 I was seeing. That is about 57% city and 43% highway( I consider highway to be anything 45 MPH and up ).
I have only taken the vehicle on 1 all highway( 55 MPH+ )trip to this point. 116 miles round trip and only 5 of it were off highway. Got 28.2 MPG on the trip. I am seeing about 17-18 if I do 100% city driving. Had one tank that was under 17 so far. That was just 14 MPG. However, that was right when I 1st got it. Was all city stop and go plus a 3 hour stretch of just sitting idling( trying to warm up a warped floor mat so it would lay down flat ). Still, that worst MPG was the average I saw from the 07 Silverado I sold when buying the Equinox.
Not bad for a heavy SUV with an underpowered V6. I am exceeding the EPA estimates because I drive conservatively. I hope as it breaks in fully( should be close now if not fully )and I swap over to synthetic fluids( oil, tranny, rear diff )that I can squeak another MPG or two from it. Has been my experience in the past swapping my trucks over to RP all around so in this vehicle that gets better fuel economy to start with I hope to see some improvement from synthetics.